Frye FONIX FP40D - Manual (Page 14)

6 FONIX FP40 Portable Hearing Aid Analyzer
FM40 Microphone
Provided if the Real-Ear Option is not
ordered. Battery Pills
(With 12" [30 cm] cables — 24" [60
cm]) cables available upon request)
#13, #675/65, #312, #10A/230. (All
pills optional with FP40-D).
Operator’s Manual
1.4.2 Optional Accessories
6-CC Coupler
Per ANSI S3.7 for NBS 9A—used to
check output of audiometers. Sound Level Calibrator
For microphone calibration